{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical", "Disease"], "input": "Intravenous injection of the specific platelet - activating factor ( PAF ) antagonist BN 52021 ( 10 mg / kg ) , 30 min before bupivacaine administration ( 2 mg / kg i . v . ) suppressed both the decrease of MBP and HR ."}
{"Chemical": ["BN 52021", "bupivacaine"], "Disease": ["decrease of MBP and HR"]}